Posted Aug 20, 2026

Senior Full Stack Engineer

Apply Now

Everforth ECS is seeking a highly skilled Full Stack Engineer with extensive experience in designing, building and maintaining large scale API's for enterprise level applications in support of the Department of Homeland Security. Tools necessary for excelling in this role include Java (with Maven, Gradle, etc), JavaScript Frontend frameworks (React, Angular, etc), Elastic and other data sources, and DevSecOps in the Cloud.

 

This role will focus heavily on modernizing legacy systems with deprecated code bases, requiring both technical expertise and creative problem-solving abilities. You will play a critical role in rearchitecting our application's API infrastructure, ensuring scalability, reliability and long-term maintainability.

 

Key Responsibilities:

 

 

Salary Range: $130,000 - $160,000 

General Description of Benefits 

Required Skills

 

 

Desired Skills

 

#EverforthECS1

 

ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

 

Everforth ECS is the federal segment of Everforth, a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.

Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.

We value:


Meet the challenge. Make a difference with Everforth ECS!

Bachelor's degree, U.S. citizenship, Public Trust eligibility, 10+ years total experience, and extensive Java, Python, React, API, cloud, CI/CD, and legacy modernization experience.

Key Responsibilities

Skills & Tools

Java, Maven, Gradle, Python, React, Angular, Redux, JavaScript, Elastic, CI/CD, AWS, Microsoft Azure, Spring Boot, Git, Docker, Kubernetes, Keycloak, Jenkins, Terraform, Ansible, OpenSearch, Elasticsearch, GitLab, ORM, Agile, Scrum

Job Details

About ECS Federal LLC

A federal technology services organization delivering data, artificial intelligence, cybersecurity, and enterprise transformation solutions. — Industry: Information Technology